Hadoop Questions and Answers – YARN-2

Answer:b
Explanation:Running the yarn script without any arguments prints the description for all commands.

2. Point out the correct statement :
a) Each queue has strict ACLs which controls which users can submit applications to individual queues
b) Hierarchy of queues is supported to ensure resources are shared among the sub-queues of an organization
c) Queues are allocated a fraction of the capacity of the grid in the sense that a certain capacity of resources will be at their disposal
d) All of the mentionedView Answer

Answer:d
Explanation:All applications submitted to a queue will have access to the capacity allocated to the queue.

3. The queue definitions and properties such as ________, ACLs can be changed, at runtime.
a) tolerant
b) capacity
c) speed
d) All of the mentionedView Answer

Answer:b
Explanation:Administrators can add additional queues at runtime, but queues cannot be deleted at runtime.

4. The CapacityScheduler has a pre-defined queue called :
a) domain
b) root
c) rear
d) All of the mentionedView Answer

Answer:b
Explanation:All queueus in the system are children of the root queue.

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5. Point out the wrong statement :
a) The multiple of the queue capacity which can be configured to allow a single user to acquire more resources
b) Changing queue properties and adding new queues is very simple
c) Queues cannot be deleted, only addition of new queues is supported
d) None of the mentionedView Answer

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